Drug interactions
Dobutamine + Iloperidone
Severity: Moderate
Dobutamine and Iloperidone: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Iloperidone prolongs the QT interval and blocks alpha-1 receptors, which can cause orthostatic hypotension. Dobutamine can provoke arrhythmias, so the combination may add to proarrhythmic risk in susceptible patients.
What this interaction means in plain words
Dobutamine and Iloperidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Dobutamine belongs to Cardiovascular; Iloperidone belongs to Central Nervous System.
Why it happens
Additive proarrhythmic potential from QT prolongation and catecholamine-induced arrhythmogenicity.
What to do
Monitor the ECG and keep potassium and magnesium in the normal range during dobutamine use. Watch blood pressure, since alpha blockade may blunt vasopressor response.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Dobutamine
Other interactions of Iloperidone
- Iloperidone + Thioridazine Contraindicated
- Alfuzosin + Iloperidone Major
- Amiodarone + Iloperidone Major
- Amisulpride + Iloperidone Major
- Amitriptyline + Iloperidone Major
- Anagrelide + Iloperidone Major
Frequently asked questions
Can I take Dobutamine with Iloperidone?
MediHelp rates the interaction as moderate. Dobutamine and Iloperidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Iloperidone prolongs the QT interval and blocks alpha-1 receptors, which can cause orthostatic hypotension. Dobutamine can provoke arrhythmias, so the combination may add to proarrhythmic risk in susceptible patients.
How serious is the interaction between Dobutamine and Iloperidone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor the ECG and keep potassium and magnesium in the normal range during dobutamine use. Watch blood pressure, since alpha blockade may blunt vasopressor response.
What other medicines interact with Dobutamine?
MediHelp also lists interactions of Dobutamine with, for example, Budesonide-formoterol, Dihydroergotamine intranasal, Dihydroergotamine. The full list is on the Dobutamine page.
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